Fig. 5

A ‘meta-correlation’ plot for 6-mers. The x coordinate of each 6-mer is the correlation across events where the k-mer appears of its count in the upstream 15–100 bp region (downstream results are similar) with tissue-averaged Ψ (ISE/ISS character), and the y coordinate gives the correlation of its conservation enrichment with Ψ (conservation bias). These two properties have a Spearman correlation of 0.0588 (p< 0.003) across all 6-mers. 6-mers appearing in fewer than 100 events or never appearing more than once in any event are not shown